音标:[,tetrә'sʌlfaid] ;
四硫化物

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(73) / 评论(0) 分类 cnn2009年(十一)月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(97) / 评论(0) 分类 Scientific American(一)月

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(133) / 评论(0) 分类 60秒科学

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(84) / 评论(0) 分类 医务英语

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(110) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(65) / 评论(0) 分类 英语听力文摘 English Digest

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(66) / 评论(0) 分类 英语听力文摘 English Digest

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(106) / 评论(0) 分类 万物简史
学英语单词
3-carboxyantipyrine
9 de Julio
a little tin god
acorea
adens
aerodromic
ambiguity problem
Amomum hongtsaoko
animal behaviour
antikinesis
atomic bombs
Bacchae
black bullhead
block mould
Boesmansrivier
bony bream
bull ditcher
burn notice
business accountability
career fair
causal links
Cirrhopetalum
Clostridium botulinum toxoid
Coats'disease
common augite
complexedness
Cryptococcus histolyticus
cytonecrosis
Darier
Descamisado
descort
Dutch Gujana
Electromagnetic Clutches
erecting diagram
escape integral
extension methods
farmlands
Fermi characteristic energy level
frictionfactor
full-length liner
Fā'id
grinding slip
hof
holistic choice
hydrogamy
in-situ gasification
inspection by judge
inter-unions
interlaminar zone
international administrative law
intra class correlation
launch time
leval alloy
logoes
macroclimatic
Margin Debt
metetoin
micro-necking
minute counter toothed sector
monkeyengine
navel-gall
neck-break
nitrile silicone rubber
onlapped
ostracized
ovarian tuberculosis
Oxygraphis polypetala
paint-burner
plantar flexors
prismatic level
put one's best foot first
resources assessment
rice-grain decoration
roof-racks
rose-tinged
roughage
scale for charge make-up
scrawny
seakeeping theory
seditiously
sequential dependent segment
shari rivers
shear gage length indicator
Slooten
small house
soberingly
species pool
spirillum minuss
spurious regressions
stackin' papers
stockingette
sulforicinoleic acid
surgyon
surirella fastuosa
system control panel
test-marketed
throw a monkey wrench into
toxic peripheral neuritis
tracking and data-relay satellite (tdrs)
uniform stability
West Central German
wooden suit